Boreophilia hyperborea (Brundin, 1940)

Klimaszewski, Jan, Sikes, Derek S., Brunke, Adam & Bourdon, Caroline, 2019, Species review of the genus Boreophilia Benick from North America (Coleoptera, Staphylinidae, Aleocharinae, Athetini): Systematics, habitat, and distribution, ZooKeys 848, pp. 57-102 : 57

4. Boreophilia hyperborea (Brundin, 1940) Figs 32-42

Atheta hyperborea Brundin, 1940: 131. Lohse et al. 1990: 153, Smetana 2004: 396.

Diagnosis.

Body broad, forebody glossy; length 2.8-3.5 mm; black with tarsi reddish brown (Fig. 32); antennomeres VIII-X subquadrate; pronotum as long as or slightly shorter than elytra at suture, maximum width of pronotum distinctly less than maximum width of elytra. Male. Tubus of median lobe of aedeagus narrow, broadly arcuate in lateral view, apex narrow and rounded (Figs 33, 34), bulbus large, oval, broad basally and narrowed apically in dorsal view, and with two elongate sclerites (Figs 35, 36); tergite VIII arcuate apically (Fig. 37); sternite VIII elongate, parabolic apically (Fig. 38). Female. Spermatheca: capsule pitcher-shaped basally with evenly, broadly tubular apical projection, moderately long and rounded apically, stem sinuate, half-looped posteriorly (Figs 41, 42); tergite VIII broadly rounded apically (Fig. 39); sternite VIII rounded apically and truncate medially, antecostal suture straight medially and slightly sinuate laterally (Fig. 40).

Distribution.

Holarctic species; recorded from Fennoscandia, Greenland, Russia (North European Territory); Canada: NT, NU; USA: AK.

Collection data.

Habitat: tundra, under rocks. Collecting methods: hand collected from under rocks. Collecting period: June and July.

Additional material examined.

NEARCTIC: Canada, NT, Barthurst Inl., Hiukitak River, 3.VIII.1966, GE Shewell, B. hyperborea Brn., det. GS Lohse (NHNG) 1 male.

USA, Alaska, Toolik Field Station, 724 m el., 68.6286N, 149.59772W, +/- 36 m, under rocks, 1- 3.VI.2008, D.S. Sikes, UAM100031281 (UAM) 1 male; Anaktuvuk Pass, 665 m el., 68.14059N, 151.74266W, +/- 200 m, Salix , tundra hillside, cobble, pollinator pitfall, 20.V.2016, D. Sikes, K. Daly, UAM100427687 (UAM) 1 female [tentative association].

PALEARCTIC: Norway, Vaalaasjö Andr. Strand, coll. G. Benick (NHNG) 1 female; Barviksmyren, W of Smelror, Varangerhalvøya, 22.VII.1998, V. Mahler (UCC) 1 female.

Greenland. Sdr. Strømfjord, 1.VII.1979, Brundin det. 1940 (NHMD) 1 female.

DNA Barcode data.

Our data included two sequences of B. hyperborea , one from Russia and one from Manitoba, Canada, which grouped into BIN BOLD:AAG4302. BOLD reports these sequences have an average and maximum distance of 0.16% and are 6.82% distant from their nearest neighbor.